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add license information for Caffeine code used in FrequencySketch (#446)

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* add license information for Caffeine code used in FrequencySketch

* fix grammar issue
This commit is contained in:
PJ Fanning 2023-06-23 09:36:08 +01:00 • committed by GitHub
parent ae84471e4d
commit 2f8ef56626
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3 changed files with 29 additions and 1 deletions
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6
LICENSE
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@ -311,6 +311,12 @@ For more information, please refer to <http://unlicense.org/>
---------------
pekko-actor contains code in `org.apache.pekko.util.FrequencySketch.scala` which was based on code from
Caffeine <https://github.com/ben-manes/caffeine> which was developed under the Apache 2.0 license.
Copyright 2015 Ben Manes. All Rights Reserved.
---------------
pekko-cluster contains VectorClock.scala which is derived from code written
by Coda Hale <https://github.com/codahale/vlock>.
He has agreed to allow us to use this code under an Apache 2.0 license

18
actor/src/main/scala/org/apache/pekko/util/FrequencySketch.scala
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@ -11,6 +11,22 @@
* Copyright (C) 2021-2022 Lightbend Inc. <https://www.lightbend.com>
*/
/*
* Copyright 2015 Ben Manes. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pekko.util
import org.apache.pekko.annotation.InternalApi
@ -253,7 +269,7 @@ private[pekko] object FastFrequencySketch {
* so that constants can be used for improved efficiency. It also uses its own rehashing of item hash codes.
*
* The implementation is inspired by the approach used in the Caffeine caching library:
* https://github.com/ben-manes/caffeine
* https://github.com/ben-manes/caffeine/blob/a6be555f0f2a44d33a9d7e52ea923622e373ac7f/caffeine/src/main/java/com/github/benmanes/caffeine/cache/FrequencySketch.java
*
* @param width width of the count-min sketch (number of counters)
* @param resetSize the size (number of counter increments) to apply the reset operation

6
legal/pekko-actor-jar-license.txt
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@ -308,3 +308,9 @@ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
---------------
pekko-actor contains code in `org.apache.pekko.util.FrequencySketch.scala` which was based on code from
Caffeine <https://github.com/ben-manes/caffeine> which was developed under the Apache 2.0 license.
Copyright 2015 Ben Manes. All Rights Reserved.